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Direct current well logging measuring system inside laboratory

A measurement system, direct current technology, applied in wellbore/well components, earthwork drilling and production, etc., can solve the problems that instrument measurement does not meet the requirements of measurement conditions, measurement curves do not meet, complex formation conditions, etc., and achieve a small footprint , easy operation and accurate measurement accuracy

Pending Publication Date: 2020-04-17
中国电波传播研究所
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Problems solved by technology

However, with the change of formation conditions, the measured apparent resistivity curve is greatly affected by it. In some cases, the measured curve does not conform to the understanding of logging interpreters. The reasons may be: 1. Instrument measurement Does not meet the requirements of the measurement conditions; 2. The formation conditions are complex, and the logging response is affected by geological parameters

Method used

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  • Direct current well logging measuring system inside laboratory
  • Direct current well logging measuring system inside laboratory
  • Direct current well logging measuring system inside laboratory

Examples

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Embodiment 1

[0027] Example 1, such as figure 1 As shown, the DC measurement system mainly includes: a data acquisition part, an operating software part, and a measuring probe part 1. The data collection part mainly includes the deep collection part and the collection communication system2.

[0028] Depth acquisition part: Depth transmission module, which can perform fixed-point measurement and dynamic measurement, and introduce depth information into the acquisition communication system;

[0029] Acquisition and communication system: The signal processing circuit collects and processes the measurement data in the project, and controls the circuit work of the measuring instrument; the communication circuit is connected to the upper computer and interacts with the upper computer for uploading and receiving information. The signal processing circuit completes functions such as data acquisition, data transmission, power adjustment, state conversion, host computer communication, and instrument rese...

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Abstract

The invention discloses a direct current well logging measuring system inside a laboratory. The direct current well logging measuring system comprises a measuring probe and a data collecting part electrically connected with the measuring probe, the data collecting part comprises a depth collecting part and a collecting communication system electrically connected with the depth collecting part, andthe collecting communication system is in connection communication with an upper computer. The direct current well logging measuring system has the beneficial effects that compared with an actual measuring system, the length of the direct current well logging measuring system in the laboratory is 1 / 10-1 / 5 of the original length, the adaptability of an instrument is improved, the instrument is flexible and portable, through contrastive analysis to a measuring model of an actual well logging instrument, the result of the direct current well logging measuring system has the comparability.

Description

Technical field [0001] The invention relates to the field of petroleum logging, in particular to a laboratory-based DC logging measurement system in the field. Background technique [0002] In logging measurement and evaluation, the resistivity curve has become the indispensable three logging curves (deep, medium, and shallow) among the nine lines of conventional logging. With the continuous penetration of exploration and development, the mining of thin and thin interbeds There are more and more demands on the exploration well. Arrayed resistivity measurement is gradually increased in exploratory wells. Arrayed curves can measure multiple radial depth curves. [0003] In recent years, fractured oil and gas reservoirs have become a hot spot for exploration. Conventional logging methods can be used to identify fractures, but the accuracy is not high. Micro-resistivity scanning logging can better identify the fractures in the well, and can be used for fractured oil and gas reservoirs....

Claims

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Application Information

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IPC IPC(8): E21B49/00
CPCE21B49/00
Inventor 李智强夏济根杨志强
Owner 中国电波传播研究所
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